{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125234",
    "entityType": "User",
    "nonce": "0xcda0749fae52c85b3775280be285d021416cc51549c033d635144b9fc013a2b0",
    "signature": "0x1552f8fbf3eebff82deeccdbc68c6a03e2528872239f47c73eea030510140c6f2e4d5501edad54417c67021d1c2498f044af2212481a6860e7cd512a99cfc3d51b",
    "signer": "0x064Ea348B4Ddc8744F23c071534144974f8439d3",
    "userId": "58707019"
  }
}